A. healthy issue B. health issue
A. health insurance B. healthy insurance
A. convenient food B. convenience food
A. popular scientific books B. popular science books
A. convenient store B. convenience store
A. We used honey to instead sugar. B. We used honey to replace sugar.
A. I substituted brown sugar for white sugar to make the cake. B. I used brown sugar to instead of white to make the cake.
A. 狼 B. 狼吞虎咽
A. 尾随 B. 小狗
A. 昨天我十点去他家的时候，他已经睡在被窝里了。 B. 昨天我十点去他家的时候，他已经在床单之间了。
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